دورية أكاديمية
Significance of CD133 positive cells in four novel HPV-16 positive cervical cancer-derived cell lines and biopsies of invasive cervical cancer
| العنوان: | Significance of CD133 positive cells in four novel HPV-16 positive cervical cancer-derived cell lines and biopsies of invasive cervical cancer |
|---|---|
| المؤلفون: | Shifa Javed, Bal Krishan Sharma, Swati Sood, Sanjeev Sharma, Rashmi Bagga, Shalmoli Bhattacharyya, Charan Singh Rayat, Lakhbir Dhaliwal, Radhika Srinivasan |
| المصدر: | BMC Cancer, Vol 18, Iss 1, Pp 1-12 (2018) |
| بيانات النشر: | BMC, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens |
| مصطلحات موضوعية: | CD133, Cancer stem cells, Cervical cancer, HPV16, Cell lines, Low passage, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282 |
| الوصف: | Abstract Background Cervical cancer is a major cause of cancer-related mortality in women in the developing world. Cancer Stem cells (CSC) have been implicated in treatment resistance and metastases development; hence understanding their significance is important. Methods Primary culture from tissue biopsies of invasive cervical cancer and serial passaging was performed for establishing cell lines. Variable Number Tandem Repeat (VNTR) assay was performed for comparison of cell lines with their parental tissue. Tumorsphere and Aldefluor assays enabled isolation of cancer stem cells (CSC); immunofluorescence and flow cytometry were performed for their surface phenotypic expression in cell lines and in 28 tissue samples. Quantitative real-time PCR for stemness and epithelial-mesenchymal transition (EMT) markers, MTT cytotoxicity assay, cell cycle analysis and cell kinetic studies were performed. Results Four low-passage novel cell lines designated RSBS-9, − 14 and − 23 from squamous cell carcinoma and RSBS-43 from adenocarcinoma of the uterine cervix were established. All were HPV16+. VNTR assay confirmed their uniqueness and derivation from respective parental tissue. CSC isolated from these cell lines showed CD133+ phenotype. In tissue samples of untreated invasive cervical cancer, CD133+ CSCs ranged from 1.3–23% of the total population which increased 2.8-fold in radiation-resistant cases. Comparison of CD133+ with CD133− bulk population cells revealed increased tumorsphere formation and upregulation of stemness and epithelial-mesenchymal transition (EMT) markers with no significant difference in cisplatin sensitivity. Conclusion Low-passage cell lines developed would serve as models for studying tumor biology. Cancer Stem Cells in cervical cancer display CD133+ phenotype and are increased in relapsed cases and hence should be targeted for achieving remission. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1471-2407 |
| العلاقة: | http://link.springer.com/article/10.1186/s12885-018-4237-5Test; https://doaj.org/toc/1471-2407Test |
| DOI: | 10.1186/s12885-018-4237-5 |
| الوصول الحر: | https://doaj.org/article/4bccd81722884095b9955825b4909b51Test |
| رقم الانضمام: | edsdoj.4bccd81722884095b9955825b4909b51 |
| قاعدة البيانات: | Directory of Open Access Journals |
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